Sold $100+ item, sent and delivered, Gameflip doesn't recognise it!?

I sold a 3DS, I put the correct tracking number on Gameflip and on the USPS site it says it already got to his house but every time I went to check the status of the package, Game flip says that the track application is having difficulties. Its been like this for days, Gameflip still says its being shipped and that means I won’t get rated, help?

Nvm everythings good now

Thank you for letting me know!

If you have any trouble, just PM me.

Regards,

I sent you a pm